Glass forming ability and thermal properties of the Mg-based amorphous alloys with dual rare earth elements addition

J. S.C. Jang, C. C. Tseng, L. J. Chang, C. F. Chang, W. J. Lee, J. C. Huang, C. T. Liu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The Mg58Cu31Y11-xNdx (x = 0 ∼ 11) amorphous alloy rods with 3∼ 10mm in diameter were prepared by Cu-mold injection method. The XRD result reveals that these entire Mg 58Cu31Y11-xNdx alloy rods exhibit a broaden diffraction pattern of amorphous phase. A clear Tg (glass transition temperature) and supercooled region (about 70 K) were revealed for all of those Mg58Cu31 Y11-xNdx amorphous alloy rods. The single stage crystallization of the Mg 58Cu31 Y11alloy was found to change into two stages crystallization when large amount of Nd element was added into this alloy. In parallel, the crystallization temperature (Tx) and supercooled region (△Tx) present a decreasing trend with increasing Nd content. The highest y value of 0.414 occurs at the alloy compositions of Mg58Cu31 Y4Nd7 and Mg58Cu31 Y6Nd5 in this alloy system. Therefore, suitable addition of Nd element can obviously increase the glass forming ability for theMg58Cu31Y11-xNd xalloy system.

Original languageEnglish
Pages (from-to)1684-1688
Number of pages5
JournalMaterials Transactions
Volume48
Issue number7
DOIs
StatePublished - Jul 2007

Keywords

  • Crystallization kinetics
  • Differential scanning calorimetry (DSC)
  • Glass forming ability
  • Thermal properties
  • mg-based amorphous alloy

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